|A DPA-03-023 or PSD-03-023 “PSD Locked” message occurs after 109 days of a audit not being performed. When an audit is performed, the mailing machine communicates with the server.
- USPS regulations require that your meter must be reset or communicate with the server at least once every three months.
- After three months without adding postage, a "PSD locked" error message is displayed and can be cleared by performing an audit.
- If you wish to avoid a "PSD locked" error message, you can perform an audit at any time prior to the timer expiration.